【免费】A miniature PHEMT switched...

A miniature PHEMT switched-LNA for 800 MHz to 8TUEl-2
A MINATURE PHEMT SWITCHED-LNA FOR 800 MHz to 8.0 GHz HANDSET APPLICATIONS.
Henrik Morkner, Mike Frank, Shun Yajima
Hewlett-Packard, WSD R&D 39201 Cherry Street, MS 830 NK10 Newark, California, 94560

ABSTRACT A powerful monolithic integrated switched-Low Noise Amplifier utilizing advanced pseudomorphic GaAs has been developed. The Swt-LNA covers 800 MHz to 8000 MHz but the primary application focus is 800 MHz to 2500 MHz. In gain mode the Swt-LNA operates on a single 3 Volt supply and the current (thus output IP3) can be adjusted from 5 to 60mA (Input IP3=+1 to +15 dBm). The Swt-LNA provides a typical 1.4 dB noise figure and 14 dB gain. When the current control pin sets the LNA to 0 mA, the SwtLNA goes automatically into bypass mode. Bypass mode has typically 2 dB loss and +35 dBm l